Seller Rating: 5

This copy shows very minor wear. Free State Books. Never settle for less.

This copy shows very minor wear. Free State Books. Never settle for less.

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  Seller Rating: 5

Minimal damage to cover and binding. Pages show light use. With pride from Motor City. All books guaranteed. Best Service, Best Prices.

Minimal damage to cover and binding. Pages show light use. With pride from Motor City. All books guaranteed. Best Service, Best Prices.

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  Seller Rating: 4

Satisfaction Guaranteed. Shipped quickly. 1993. Paperback. Used, good. Cover has some rubbing. Cover has some edge wear.

Satisfaction Guaranteed. Shipped quickly. 1993. Paperback. Used, good. Cover has some rubbing. Cover has some edge wear.

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  Seller Rating: 5

Help save a tree. Buy all your used books from Green Earth Books. Read. Recycle and Reuse!

Help save a tree. Buy all your used books from Green Earth Books. Read. Recycle and Reuse!

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  Seller Rating: 4

Former Library book. Shows some signs of wear, and may have some markings on the inside. Shipped to

Former Library book. Shows some signs of wear, and may have some markings on the inside. Shipped to over one million happy customers. Your purchase benefits world literacy!

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  Seller Rating: 5

Shipped within 24 hours. 100% Refund Guaranteed. Good copy with average wear. No dust jacket.

Shipped within 24 hours. 100% Refund Guaranteed. Good copy with average wear. No dust jacket.

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  Seller Rating: 5

Ex-Library book-will contain library markings. Book has a small amount of wear visible on the binding, cover, pages. Selection as wide as the Mississippi.

Ex-Library book-will contain library markings. Book has a small amount of wear visible on the binding, cover, pages. Selection as wide as the Mississippi.

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  Seller Rating: 4

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  Seller Rating: 4

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  Seller Rating: 4

Beech Tree Farm Pubns 1993 one crease to glossy cover, clean tight bright unmarked illustrated text.

Beech Tree Farm Pubns 1993 one crease to glossy cover, clean tight bright unmarked illustrated text. From School Grade 3-7--Continuing his series of successful science books, Zubrowski presents simple activities to demonstrate various concepts of balance. Clear instructions and easy-to-find materials (cardboard, coat hangers, and paper clips are typical) ensure that most children will be able to complete the projects on their own. Doty's line drawings are cartoonlike, but useful and precise. The projects neatly build upon one another, gradually moving into more complex challenges. When materials can be reused for another experiment (and much of the cardboard can), it is noted in the text. A "what's happening" section follows each set of activities, explaining concepts such as balancing points and lines of symmetry, which the preceding experiments demonstrate. The title is slightly misleading, since the focuses on balance in general, not just mobiles. Readers may be disappointed to find that no actual mobile projects appear until page 75. Instead, the first three-fourths of the is devoted to various balancing toys and objects. While not especially fun as toys, they do convey information about properties of balance effectively. When readers finally construct the mobiles in the last fourth of the book, they should have an excellent grasp of what makes them work. This offering is as good as Howard Smith's Balance It! (Four Winds, 1982; o.p. ), and superior to Jennings's Balancing (Watts, 1989) and Fitzpatrick's Balancing (Silver Burdett, 1988). --Steven Engelfried, Alameda County Library, CA 1993 Product DescriptionSeals balance balls on the ends of their noses. Ballerinas balance their bodies on the tips of their toes. And mobiles hang perfectly because they, too, balance. Learn all about the scientific principles that allow a gymnast to perform incredible tricks on the balance beam and an acrobat to walk easily across a thin wire. Illustrated.

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  Seller Rating: 5

Very nice copy.

Very nice copy.

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  Seller Rating: 5

Some may have high-lighting or writings, some are ex-library.

Some may have high-lighting or writings, some are ex-library.

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  Seller Rating: 4

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  Seller Rating: 4

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